package com.example.demo.demos.book.mapper;

import com.example.demo.model.BookInfo;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

import java.util.List;

@Mapper
public interface BookInfoMapper {
    @Select("select * from book_info  where status!=0 order by id desc limit #{offset},#{pageSize}")
    List<BookInfo> selectBookInfoByPage(@Param("offset") Integer offset, @Param("pageSize") Integer PageSize);

    @Select("select count(1) from book_info where status!=0")
    Integer count();

    @Insert("insert into book_info (book_name,author,count,price,publish,status)" +
            " values(#{bookName},#{author},#{count},#{price},#{publish},#{status})")
    Integer insertBook(BookInfo bookInfo);

    @Select("select *from book_info where id=#{id}")
    BookInfo queryBookInfoById(Integer id);
    //使用xml方式实现更新
    Integer updateBook(BookInfo bookInfo);
    Integer batchDelete(@Param("ids") List<Integer> ids);

}
